Flutter Developer

Senior Frontend Mobile App Developer

Senior frontend mobile app developer with 15 years of professional experience, specializing in Flutter and cross-platform solutions. Recently expanded into Web3 and crypto payments, delivering secure wallet features, stablecoin integrations, and QR based payment flows. Skilled in AI-assisted development using ChatGPT, Claude AI and Cursor AI to accelerate delivery and improve code quality. In addition to my professional work, I actively build Web3 and crypto payment features in personal projects, including wallet authentication, ERC-20 stablecoin integrations, and QR-based transaction flows. Proven track record across e-commerce, healthcare and fintech, with a focus on building high performance, user-friendly applications.


Experience: 6 years

Yearly salary: $96,000

Hourly rate: $0

Nationality: 🇩🇪 Germany

Residency: 🇩🇪 Germany


Experience

Mobile App Developer
Vilua Healthcare GmbH
2018 - 2021
Spearheaded frontend and mobile development in multiple healthcare projects, utilizing cutting-edge technologies. Led the development of numerous apps from ideation to release on app stores such as Google Play and App Store. Proficient in: Flutter, MobX, Bloc, Provider, Angular (v6, v7, v10), Ionic (v2, v3, v4 Beta), TypeScript, Apache Cordova, Sourcetree, Git, SASS, Post CSS, Gulp, Webpack, npm, nvm, nodeJs, Xcode, Android Studio, and Intellij.
Full stack developer
Kreuzwerker GmbH
2017 - 2017
Served as a Full Stack Developer and Consultant at a consulting company, with responsibilities divided into two main components - Providing consultation and manage internal projects. Provided consulting services and developed new features at client's office based on recommendations and requests for a Drupal-based project. Managed internal projects for kreuzwerker, including researching new platform for company website development, interviewing front-end candidates, attending conferences, and creating company knowledge base in Confluence. Enhanced skills through self-development by taking online courses. Proficient in: project management, stand-up reporting, Drupal 7, PHP, MySQL, JavaScript, Vagrant, WordPress, Go lang, and Node.js.
Web Developer
Compuccino GmbH
2015 - 2016
Spearheaded front end development projects as a Web Developer, focusing on creating new websites using Drupal based on provided designs and features. Integrated and utilized various plugins and JavaScript frameworks to enhance functionality. Resolved bugs on company websites and implemented responsive design strategies. Collaborated with team members using Scrum methodology, including daily meetings and sprint planning. Proficient in: HTML, CSS, Sass, Bootstrap, JavaScript, AJAX, jQuery, React.js, Babel, JIRA, Aptana, Vagrant, Windows VM, Git, Github, Drupal 7, PHP, Ubuntu, Inkscape, GIMP, SQL databases, and Beanstalk.
Web Developer
Wine in Black GmbH
2014 - 2015
Spearheaded the development of new features and integrated jQuery plugins to enhance functionality on company websites. Identified and resolved bugs in a timely manner, ensuring optimal performance and user experience. Utilized responsive design techniques to optimize websites for various devices and screen sizes. Collaborated with front end team to implement Scrum strategy, participate in daily meetings, and assist with sprint planning. Proficient in: HTML, CSS, Sass, JavaScript, AJAX, jQuery, JIRA, PhpStorm, vagrant, and FileZilla.
Web Developer
Spotoption
2012 - 2013
Provided support for live websites of company clients, focusing on client-side functionality. Conducted quality assurance testing on company website and resolved bugs in the system. Worked with MySQL database, performing queries, modifying the database, and assisting in fixing back-end bugs. Proficient in: HTML, CSS, JavaScript, AJAX, jQuery, MySQL, PHP, SVN, JIRA, NetBeans, FileZilla, and Photoshop.
Full stack developer
Upssite startup
2011 - 2012
Spearheaded development for company website, mastering PHP through independent study. Designed and implemented client-side features utilizing HTML, CSS, and JS, optimizing UI for multiple devices. Developed new features and resolved bugs on server-side using PHP and MySQL. Proficient in MySQL database management and query optimization. Skilled in WordPress development, leveraging WordPress Codex for feature enhancements. Proficient in: HTML, CSS, JS, AJAX, JQuery, MySQL, PHP, Eclipse, and WordPress technologies.
Help Desk / System Administrator
Fisman Chains, Malam communications, Coca Cola, HOT - Cable Television
2005 - 2010
Provided technical and front-line support services to internal employees of multiple leading companies as a key member of the helpdesk support team: Managed users and authorizations using Active Directory and Exchange, while also assisting in managing the network as a system administrator: Proficient in: QA, hardware troubleshooting, customer service, Unix, Windows Server, Citrix, Novell, AS400, and various other IT systems and software applications.

Skills

flutter
english
german